Mine detail: Divide Extension Mine

Previously called 'Kendall ShaftCaldwell ShaftMammoth No. 1 Claim'

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Location

Lat / long:

38.00105, -117.24119

Resource(M)

Primary:	Silver
Tertiary:	Gold
Ore:	Cerargyrite
Orebody form:	TABULAR

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1921

Geology

Host rock:	Fraction Breccia
Host type:	Rhyolite
Associated type:	Rhyolite
Structure:	Slips Of Various Orientations Traverse The Lode
Alteration processes:	Potassic, Phyllic, Propylitic, Zoned Around Fault Zones And Fractures

References

MRDS	M242021
DEP	10046809
Reference	{Deposit:: KNOPF, ADOLPH, 1921, USGS BULL 715, P. 167-168}{Deposit:: LINCOLN, F.C., 1923}{Deposit:: NBMG REPORT 33, P. 124}{Deposit:: NBMG BULL 92, P. 121-128.}{Deposit:: WEED, W.H., ED., 1920, THE MINES HANDBOOK, VOL XIV, P. 1135-1136.}{Deposit:: WEED, W.H., ED., 1922, THE MINES HANDBOOK, VOL. XV, P. 1185-1186.}{Production:: BONHAM AND GARSIDE, 1979, P. 125.; WEED, W.H., 1922, P 1185-1186}
Reporter	La Pointe, D.D. (Tingley, J.V.)